Advances in unreamed interlocked nailing of the humeral shaft

Conservative-functional treatment of fresh humeral shaft fractures remains the method of choice, even though operative stabilization is increasingly being considered as an alternative. Among the surgical options, humeral nailing becomes more and more popular. Different humeral nail systems have been introduced for antegrade implantation. Many of them are criticized as problematic, or even insufficient, because of difficulties in implantation, damage of the humeral head cartilage, shoulder impingement, or rotatory instability.